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119 lines
4.1 KiB
Plaintext
119 lines
4.1 KiB
Plaintext
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--[ HOWTO CROSS-COMPILE ELINKS ]--
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--[ FOR LIN64, WIN64 AND ARM32 ]--
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--= 2022 04 22 =--
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Hello All,
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so it could be annoying to get elinks compiled on Windows.
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Or Arm or just different architecture than Linux.
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if You'd like to do that there is a solution. And that's
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mingw. You can cross-compile on Linux for Windows or Arm
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CPU.
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Now I'll assume You'd want to compile Windows x64 binary on
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Linux. There is a script I provide. it's build.sh. It would
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create static binary for arm, win or lin.
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On Debian You'd use x86_64-w64-mingw32-gcc or rather the
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mingw toolchain. It's usage it's quite straight forward just
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use it as environment variable:
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CC=x86_64-w64-mingw32-gcc
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and to prepare the compilation configuration add:
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--host=x86_64-w64-mingw32
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parameter to configure.
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And that's it. With the script You'll get the very basic
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binary for Windows. It could be run, it would open simple
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http pages. The support for the terminal is not very good.
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So I would advise You to use environment variable TERM and
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set it to dumb. Like this:
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set TERM=dumb
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Some note on the testing environment. You of course obtain
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several machines and test it. But Linux handles all the
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emulation by itself. As I said here we assume You have
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Debian 10 at hand. And it can provide several machines at
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once as testing environment.
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[*] Windows
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For Windows You can run it in qemu. There is plenty of
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tutorials on the Net on HOWTO run Windows on it. Once You
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have the Windows x64 system it's not really necessary to
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open the graphical user interface. In the time of the
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writting there is possibility to run openssh server on
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it. To prepare the OpenSSH server just execute in admin
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powershell:
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Add-WindowsCapability -Online -Name OpenSSH.Client~~~~0.0.1.0
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Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0
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Start-Service sshd
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Set-Service -Name sshd -StartupType 'Automatic'
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You have to tune the firewall. And forward the port to the
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localhost of the host machine from gues. After that You get
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the command prompt. I'm using sshfs to mount the host
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directory with the elinks sources so there is nothing
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necessary to copy and You can compile on the Linux host and
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execute binary on the Windows guest.
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Using GNU screen enables me to have 0-9 console screens.
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Some of it are dedicated to the binaries building on the
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Linux host and some one is ssh to the Windows guest and it's
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prepared in the mounted sources directory via sshfs to
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execute when compilation succeed.
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Other option is to use Wine but currently that doesn't
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provide the natural feeling of dumb terminal (see above).
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[*] ARM CPU
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The other architecture is from different category. In time
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of writting there is Raspberry Pi, Mobile Phones, NAS etc.
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Shortly You can get ARM processor in many devices. And
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sometimes it's handy to browse without much stress for the
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CPU that makes the common Graphical Interface unusable.
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To compile the binary for ARM You can use MinGW analogically
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to the Win architecture. I'd suggest following:
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CC=arm-linux-gnueabihf-gcc
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LD=arm-linux-gnueabihf-ld
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--build=arm-linux-gnu
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There are differences in the processors and currently the
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64-bit ARM CPU's are out [ aarch64 ].
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To test the binary You can emulate the raspberry pi in qemu
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in the same manner as windows. In my case I've got qemu
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running with the Raspbery Pi 2B emulation. I'm using sshfs
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in the same manner and have it open on one of the GNU
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screens. That makes the same efficiency in the terms of not
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needing to have any other device at hand and still make the
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basic tests of binaries correctness.
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There is one more option to run the arm binary. And that's
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qemu's command qemu-arm-static:
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qemu-arm-static ./src/elinks
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Finally the qemu provides runtime emulation for static
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binary without any need for additional disk space etc.
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Till Next Time
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